To clean a smart TV screen safely, follow these steps:

• Unplug your TV before cleaning to avoid any electrical hazards.
• Use a soft, clean, lint-free microfiber cloth for cleaning. Avoid paper towels or abrasive materials.
• Start by gently wiping the screen with the dry microfiber cloth in circular motions to remove dust.
• If there are fingerprints or smudges, dampen the cloth slightly with distilled water or a very mild soap solution (about 100:1 water to soap ratio) — never spray liquid directly on the screen.
• Wipe the screen gently using the damp cloth, then immediately dry it with a dry microfiber cloth to prevent moisture damage.
• Avoid pressing hard on the screen as it is delicate and can be damaged easily.
• Let the screen dry completely before plugging the TV back in and turning it on.

These steps help maintain the screen's clarity and avoid damage from harsh chemicals or excessive moisture.